FX Settings save to a Kit

Hi there, I have following issue. I have an analog rytm as external in of an analog four. Ob the analog four I have two patterns with each a different kitt saved. In Pattern 1 I put the external in Volume in the fx on full Volume. And save the pattern. On pattern 2 I turned the volume of the fx in Zero an save. For my understanding If i Switch the patterns the Extertal in should be Heard and when i Switch to the other pattern the Sound should come through. I can also See that the Volume indicator in FX Changes but the Sound of the external in ist still mute . Any Help?